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Estimating & tendering
- Quantity take-offs from drawings
- Project cost estimates
- Labour and material pricing
- Subcontractor package pricing
- Supplier and subcontractor enquiries
- Quote comparisons
- Tender preparation and re-pricing
Your outsourced construction office
Estimating, procurement, admin and project support for small and medium-sized building companies. From a 30-minute task to full project support on a major development, we fit around the job, not the other way round.
Your first hour is on us. No obligation to continue.

From a new porch to a block of apartments, we understand the drawings, quotes, suppliers, materials, programmes, costs and paperwork involved. So when you hand us a job, we know exactly what we’re dealing with.
We understand the work behind the work.
01Off your plate
Running a building business means a steady stream of office work. Here’s the kind of thing builders hand straight to us.
Need a utility connection?
We’ll complete the application and handle the information requests.
Need windows delivered in 14 days?
We’ll find suitable suppliers, check availability and get prices.
No time to get more than one subcontractor quote?
We’ll get three like-for-like quotes and lay them out side by side.
Got a tender sitting on your desk?
We’ll review the drawings, do the take-off and prepare the pricing.
Need a material that’s hard to source?
We’ll research suppliers and find an option that works.
Not sure your merchant’s prices are the best?
Send us the list. We’ll shop around for you.
Main contractor asking for RAMS?
We’ll have them ready before any time on site is lost.
If it’s construction office work that’s eating your time, ask us.
Ask us about a jobA simple way to start
“What’s the one thing on your list you haven’t had time to deal with?”
Tell us about it. If it’s something we can handle, we’ll spend the first hour on it free of charge. No obligation to continue, just a clear view of what we can take off your plate.
02What we do
Experienced support across the commercial and admin side of building, from the first take-off to the final account.
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Need something researched, organised, chased, prepared or sorted? If it’s construction-related office work, ask us.

In-house architectural technician
Our in-house architectural technician can produce construction details, amend drawings and build 3D models as the job requires, so questions get answered without waiting on a third party.
03Flexible by design
You don’t need enough work for another full-time hire. You might need someone for one job, one project or a few hours every week.
Option 1
“Can you sort this out?” Send us the details and we’ll get it done.
Option 2
Help pricing, procuring or running the admin on a particular job. We support the parts you need.
Option 3
An extra pair of hands each week. Agree a set number of hours and use them across estimating, procurement, admin and project support.
Option 4
A construction office without building one in-house. We become an extension of your business.
04Project support
One stage or every stage. From pricing the tender to closing out the final account, we slot in wherever you need extra capacity.
Stage 01
Take-offs, estimates, tender preparation, subcontractor pricing
Stage 02
Budgets, programmes, procurement planning, trade packages
Stage 03
Supplier enquiries, quote comparisons, ordering, lead times
Stage 04
Cost tracking, variations, valuations, subcontractor coordination, admin
Stage 05
Snagging, final accounts, documentation, project close-out
05Why The Builder’s Office
The Builder’s Office was founded on 15 years of experience across construction, contracting and property development, including running a building company and delivering major developments.

Hands-on across residential, extensions, refurbishment, new-build and major developments.
Renovations, loft conversions and extensions, with annual turnover above £1.5m. Projects, subcontractors, suppliers, staff and costs, managed first-hand.
As Construction Director and equity partner, responsible for delivery from planning and procurement through to completion.
Former cinema converted into 12 apartments and 3 commercial units.
Development of four luxury new-build houses.
06Case study

KST had a strong track record delivering groundwork and brickwork for smaller builders. The next step was tendering directly to house builders and developers, which needed commercial and admin support it didn’t have in-house.
KST secured its first major subcontract package with a house builder, a platform for more developer work alongside its growing private client business, without adding permanent overhead.
The speed and quality of support provided was instrumental in helping us win our first major subcontract from a house builder/developer and ensuring that we were competitive yet profitable in our bid.
We will continue to use The Builder’s Office both for subcontract tenders and to support our growing extension and landscaping works for private clients.
07Get in touch
If there’s something on your list you haven’t got time to deal with, tell us about it. One task, one project or ongoing support.
We’ll be in touch to arrange a quick call about what you need.